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| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2017-07-28 22:08:10 +0200 |
|---|---|---|
| committer | Lucas Stach <l.stach@pengutronix.de> | 2017-07-30 16:10:01 +0200 |
| commit | 07bc1f8ae9586a64a2eed808c920eab85c618335 (patch) | |
| tree | 9956fda7a4ec213e2afe8fe4b8631fd2e64114ed /arch | |
| parent | 2ebda864f837931ee20a1f1e4158c0ce91103b37 (diff) | |
| download | barebox-07bc1f8ae9586a64a2eed808c920eab85c618335.tar.gz barebox-07bc1f8ae9586a64a2eed808c920eab85c618335.tar.xz | |
ARM: imx: clocksource: error out if clk freq is 0
If instead this isn't checked this results in a division by zero later.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-imx/clocksource.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/clocksource.c b/arch/arm/mach-imx/clocksource.c index 17762c3caf..793f84ee48 100644 --- a/arch/arm/mach-imx/clocksource.c +++ b/arch/arm/mach-imx/clocksource.c @@ -121,6 +121,10 @@ static int imx_gpt_probe(struct device_d *dev) dev_err(dev, "failed to get clock\n"); } else { rate = clk_get_rate(clk_gpt); + if (!rate) { + dev_err(dev, "clock reports rate == 0\n"); + return -EIO; + } } writel(0, timer_base + GPT_TPRER); |